1. Introduzione
This manual provides essential information for the safe and efficient operation, installation, and maintenance of the Wilo-WJ-201-X-EM Self-priming Jet Pump. Please read this manual thoroughly before installation or operation to ensure proper use and to prevent damage or injury.
Figura 1: Wilo-WJ-201-X-EM Self-priming Jet Pump. This image shows the complete pump unit, featuring a stainless steel pump housing and a green motor casing with a black electrical box on top.
The Wilo-WJ-201-X-EM is a robust self-priming jet pump designed for various applications including water transfer, irrigation, sprinkling, RO applications, and chiller applications. Its compact size, light weight, and practical carrying handle make it user-friendly. The pump features a robust stainless steel construction for durable operation, with the impeller, shaft, and housing made of AISI 304 stainless steel. It offers a high supply guarantee due to its hydraulic output and self-priming capability up to 8 meters, even at low flow rates.
2. Informazioni sulla sicurezza
Always adhere to local safety regulations and guidelines when installing, operating, or maintaining the pump. Failure to do so may result in serious injury or damage to the equipment.
- Ensure the pump is installed in a sheltered, easily accessible, well-ventilated area, protected from frost.
- Always connect proper earthing to the motor.
- Perform electrical connections correctly and ensure proper protection with devices like MCB (Miniature Circuit Breaker) or Fuse.
- Avoid any piping leakages.
- Never run the pump with the suction valve closed.
- Do not use undersized or oversized pipes.
- Avoid dry running of the pump, as this can cause severe damage.
Figura 2: Wilo-WJ Do's and Don'ts. This graphic illustrates key safety and installation guidelines, showing green checkmarks for correct practices (shelter, earthing, electrical connection) and red crosses for incorrect practices (piping leakages, closed suction valve, incorrect pipe sizing, dry running).
3. Configurazione e installazione
Una corretta installazione è fondamentale per le prestazioni e la durata della pompa. Seguire attentamente questi passaggi:
- Posizione: Install the pump in a location that is easy to reach, normally ventilated, and protected from frost and direct weather exposure.
- Montaggio: Montare saldamente la pompa su una superficie stabile e piana per ridurre al minimo le vibrazioni.
- Tubazioni:
- Ensure all pipe connections are free from leakages.
- Use pipes of the correct size (25 mm / 25 mm for suction and delivery as per specifications for WJ-201-X-EM) to avoid performance issues.
- Avoid sharp bends in piping to ensure smooth flow.
- Collegamento elettrico:
- Connect the pump to a single-phase 230V, 50Hz power supply.
- Ensure proper earthing connection for safety.
- Install appropriate electrical protection, such as an MCB or fuse, as per local electrical codes.
- Primerizzazione: As a self-priming pump, it can draw water up to 8 meters. However, for initial startup or after maintenance, ensure the pump casing is filled with water to facilitate quicker priming.
4. Istruzioni per l'uso
Follow these guidelines for safe and effective operation of your Wilo-WJ-201-X-EM pump:
- Controllo preoperativo: Before starting, ensure all connections are secure, there are no visible leaks, and the power supply is correctly connected.
- Avvio della pompa: Turn on the power supply. The pump will begin to operate and self-prime if necessary.
- Monitoraggio: Observe the pump during operation for any unusual noises, vibrations, or leaks.
- Chiudere: Per arrestare la pompa, disinserire l'alimentazione.
- Evitare la corsa a secco: Never allow the pump to run without water, as this will cause severe damage to the mechanical seal and other components.
- Curva di prestazione: Refer to the performance curve to understand the pump's head and flow characteristics under different conditions.
Figura 3: Wilo-Jet WJ Performance Curve. This graph illustrates the relationship between head (H/m) and flow (Q/m³/h) for different Wilo-Jet WJ pump models (WJ 202, WJ 203, WJ 204), showing their operational envelopes.
5. Manutenzione
Una manutenzione regolare garantisce prestazioni ottimali e prolunga la durata della pompa. Scollegare sempre l'alimentazione prima di eseguire qualsiasi intervento di manutenzione.
- Ispezione regolare: Periodically check for any signs of wear, corrosion, or damage to the pump casing, motor, and connections.
- Controlli delle perdite: Inspect all pipe connections and seals for any leaks. Tighten or replace components as necessary.
- Pulizia: Mantenere la pompa e l'area circostante pulite e libere da detriti per garantire una ventilazione adeguata ed evitare il surriscaldamento.
- Protezione dal gelo: In cold climates, drain the pump completely if it will not be used for an extended period to prevent damage from freezing water.
- Servizio professionale: For complex repairs or internal component issues, contact a qualified service technician.
6. Risoluzione Dei Problemi
This section provides solutions to common issues you might encounter with your pump.
| Problema | Possibile causa | Soluzione |
|---|---|---|
| La pompa non si avvia | Nessuna alimentazione; sovraccarico del motore; girante bloccata. | Check power connection and circuit breaker; Allow motor to cool and reset overload; Inspect and clear impeller. |
| La pompa funziona ma non c'è acqua o il flusso è basso | Pump not primed; Suction line air leak; Clogged suction filter; Low water level at source; Incorrect pipe sizing. | Ensure pump is fully primed; Check all suction connections for leaks; Clean suction filter; Verify adequate water supply; Ensure correct pipe dimensions (25mm/25mm). |
| Rumore o vibrazioni eccessivi | Air in pump/piping; Loose mounting; Bearing wear; Cavitation. | Bleed air from system; Securely fasten pump; Contact service for bearing replacement; Check for restricted flow on suction side. |
| La pompa perde | Loose connections; Damaged seals/gaskets; Cracked casing. | Tighten connections; Replace worn seals/gaskets; Contact service for casing repair/replacement. |
7. Specifiche
Detailed technical specifications for the Wilo-WJ-201-X-EM Self-priming Jet Pump:
- Marca: Villo
- Numero modello: W_8167867
- Dimensioni del prodotto: 20L x 25W x 41H centimetri
- Peso dell'articolo: 7.2 chilogrammi (7 kg 200 g)
- Fonte di energia: Elettrico con cavo
- Voltage: 1 Phase ~ 230 Volts, 50 Hz
- Energia: 0.50 CV (0.37 kW)
- Portata massima: Up to 50 Liters Per Minute (LPM)
- Prevalenza massima: Fino a 26 metri
- Pipe Size (Suction/Delivery): 25 millimetri / 25 millimetri
- Materiale: Pump Housing & Impeller: Stainless Steel (AISI 304)
- Colore: Verde
- Self-priming capability: Fino a 8 metri
- Produttore: WILO Pumps India
- Paese di origine: India
Selection Table for Wilo-WJ Series
Figura 4: Wilo-WJ Series Pump Selection Table. This table provides detailed specifications for various Wilo-WJ pump models, including Article No., Pipe Size (Suction/Delivery), Power Rating (kW/hp), and Discharge in LPM at different Head (m) values. The WJ-201-X-EM model is highlighted with its specific performance data.
Note: The specifications provided are for the Wilo-WJ-201-X-EM model. Refer to the selection table for other models in the series.
8. Garanzia e supporto
Wilo provides a 1-year extended warranty option for this product. For warranty claims, technical support, or service inquiries, please contact WILO Pumps India or your authorized dealer. Ensure you have your model number (W_8167867) and purchase details available when contacting support.
For further information, you may refer to the official Wilo documentation or visit their website. The general installation and operating instructions cover multiple languages, as indicated on the manual cover.
Figura 5: Wilo-Jet WJ Installation and Operating Instructions Manual Cover. This image displays the cover of the multi-language instruction manual for Wilo-Jet WJ pumps, indicating availability in languages such as English, German, French, Italian, Spanish, and others.
